Question

calculate the no of atom of the constituent elements in 53g of Na2co3.

Answer 1

Hi Vineet217,
Mole is actually the mole is the unit of measurement for the amount of substance in the International System of Units (SI). The unit is defined as the amount of sample of a chemical substance that contains as many constitutive particles, e.g., atoms, molecules, ions, electrons, or photons.
No. of atoms in a compound is equal to the atomic mass of a compound
atomic mass of Na2CO3 is 106
that is there are 6.023 * 10^23 atoms in 106 grams of Na2CO3
hence for 53 grams, there will be half the number of atoms that were in 106 grams.
Hence number of atoms in 56 grams is
3.011 * 10^23 atoms

Hope this helps
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